WonderSwan: A classic black and white handheld game console developed by Bandai and Koto Laboratory. It was first released in Japan on March 4, 1999. Black and white screen: WonderSwan uses a 160x256 pixel resolution LCD screen, displaying black and white images. Games play with simple but charming graphics. Compact size: WonderSwan is small, lightweight, and easy to carry. Battery: WonderSwan uses 2 AA batteries, providing long-lasting gameplay. Nevertheless, the WonderSwan is still a legendary handheld game console that many gamers in Japan still remember, and some of its games have been ported to other platforms.